/* Roadmap's fixed glass navigation, shared without page-specific overrides. */
body[data-page] .site-header,
body[data-page] .site-header.scenic-nav {
    position: fixed;
    inset: 0 0 auto;
    z-index: 220;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    min-height: 82px;
    gap: 24px;
    padding: 15px clamp(20px, 4vw, 52px);
    font-family: 'Geist', system-ui, sans-serif;
    line-height: 1.55;
    background: linear-gradient(180deg, rgba(248, 249, 246, 0.7), rgba(248, 249, 246, 0.3));
    border: 0;
    border-bottom: 1px solid rgba(216, 222, 216, 0.46);
    box-shadow: 0 14px 38px rgba(54, 67, 58, 0.06);
    -webkit-backdrop-filter: blur(18px) saturate(1.06);
    backdrop-filter: blur(18px) saturate(1.06);
}
body[data-page] .site-header.is-scrolled {
    background: rgba(248, 249, 246, 0.86);
    border-bottom-color: rgba(216, 222, 216, 0.68);
    box-shadow: var(--shadow-soft);
}
body[data-page] .site-header .brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex: 0 0 auto;
    width: max-content;
    font-size: 1.18rem;
    font-weight: 650;
    letter-spacing: -0.025em;
}
body[data-page] .site-header .brand img.brand-mark {
    width: 48px;
    height: 48px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    object-fit: contain;
    mix-blend-mode: normal;
}
body[data-page] .site-nav {
    display: flex;
    align-items: center;
    flex: 0 1 auto;
    width: auto;
    gap: 6px;
    overflow: visible;
    padding: 0;
}
body[data-page] .site-nav a {
    flex: 0 0 auto;
    min-height: 44px;
    padding: 9px 15px;
    font-size: 1.02rem;
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: 999px;
    color: var(--secondary);
}
body[data-page] .site-nav a:hover,
body[data-page] .site-nav a[aria-current='page'] {
    background: rgba(252, 252, 250, 0.66);
    border-color: rgba(216, 222, 216, 0.72);
    color: var(--text);
}
body[data-page] .button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 999px;
    min-height: 48px;
    padding: 0 18px;
    font-weight: 650;
    cursor: pointer;
}
body[data-page] .button.primary {
    background: var(--text);
    border: 1px solid var(--text);
    color: var(--elevated);
    box-shadow: 0 12px 28px rgba(32, 37, 34, 0.12);
}
body[data-page] .button.quiet {
    background: rgba(252, 252, 250, 0.72);
    border: 1px solid var(--outline);
    color: var(--text);
}
@media (max-width: 760px) {
    body[data-page] .site-header,
    body[data-page] .site-header.scenic-nav {
        min-height: 122px;
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    body[data-page] .site-nav {
        width: 100%;
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 3px;
        gap: 4px;
    }
    body[data-page] .site-nav a {
        align-items: center;
        display: inline-flex;
        justify-content: center;
        font-size: 0.82rem;
        line-height: 1;
        min-height: 36px;
        padding: 7px 10px;
    }
}

/* Roadmap's wordmark uses the Georgia fallback; keep it identical here. */
body[data-page] .site-header .brand span {
    font-family: Georgia, serif;
}
@media (max-width: 360px) {
    body[data-page] .site-nav {
        gap: 3px;
    }
    body[data-page] .site-nav a {
        font-size: 0.75rem;
        min-height: 34px;
        padding: 6px 8px;
    }
}